C ontent-Based Social Network Analysis of Online Communities Anatoliy Gruzd Caroline Haythornthwaite Graduate School of Library and Information Science University of Illinois at Urbana-Champaign Social Network/ing Symposium Toronto, 2007
Chain Network: definition options A B C D 1 1 1 1 .5 0 0 0 .25 .5 1 0 Connect a sender to all people in the reference chain with decreasing weights. Same as option 2, but a tie between a sender and the first person is half weight (e.g. 0.5) Connect a sender to the last and first (=thread starter) person in the chain, and assign equal weight values (e.g. 1) to both ties. Connect a sender to the last person in the post chain only (undirected)
Chain Networks: missed info. Previous post is by Gabriel, Sam replies: ‘ Nick, Ann, Gina, Gabriel : I apologize for not backing this up with a good source, but I know from reading about this topic that libraries…’ Previous posts by Gabriel, Sam, Gina, and Eva, then: ‘ Gina , I owe you a cookie. This is exactly what I wanted to know. I was already planning on taking 302 next semester, and now I have something to look forward to!’
Post by Fred :
‘ I wonder if that could be why other libraries
around the world have resisted changing –
it's too much work, and as Dan pointed out, too expensive.’
Just a note to clarify something in yesterday's lecture/chat session. I mentioned that Monday's NY Times had an article on <#1><subject> Brewster . I want to clarify that the article concerns the copyright extension law and the current Supreme Court case <#1><subject> Eldred v. <#1><subject> Ashcroft , set to begin today, I believe. <#1><subject 2> Brewster Kahle is currently touring the country in a bookmobile … For more info on this … you can refer to the Web site that <#1><reference> Jodie mentioned yesterday… < #1><signature> LA
NB. Jodie may not even appear in the contributors to this thread
Several of our programs at UC <#7><subject> Davis have well-intentioned lower division research methods classes that introduce then never reinforce basic skills.
Need to disambiguate “UC Davis” from someone called “Davis”
Research (to paraphrase my hero, <#8><subject> Shrek ) is like onions. Not because it stinks, but because it is made up of layers.
“ Shrek” as a name will not appear in conventional name lists.
Reference Chain : [email_address] (= Dustin ) => [email_address] (= S am )
Hi Dustin , Sam , Nick and all, I appreciate your posts from this and last week […]. I keep thinking of poor Charlie who only wanted information on “dogs“ Sam has been talking about. […] Wilma .
* - end of the line 0.116 0.0012 88 * Wilma * 0.07 0.285 65 has been Sam on “dogs“ 0.04 0.05 50 who only Charlie of poor -0.001 0.320 2 and all, Nick Dustin, Sam, -0.002 0.321 1 Nick and Sam * Dustin, -0.004 0.322 0 Sam, Nick, Dustin * Hi Score “FROM” Score “TO” Position % Words to the Right Name Words to the Left
An ego network for Brent Visualization powered by http://www.netvis.org Name Network Chain Network
An ego network for Tyler Name Network Chain Network kurt -> Kurt Cobain , a lead singer for the rock band Nirvana dewey -> John Dewey , philosopher & educator santa_monica -> Santa Monica Public Library mark –> mark up language Visualization powered by http://www.netvis.org
Haythornthwaite, C. & Gruzd, A. (2007). A noun phrase analysis tool for mining online community. In C. Steinfield, B.T. Pentland, M. Ackerman & N. Contractor (eds.). Communities and Technologies 2007 (pp. 67-86). London: Springer.
Howard T. Welser, Eric Gleave, Danyel Fisher, and Marc Smith (2007) Visualizing the signatures of social roles in online discussion groups. Journal of Social Structure, 8(2). http://www.cmu.edu/joss/content/articles/volume8/Welser/